Transmits control commands and responses from the host box to the storage chip.
) : Supplies input/output voltage for signal lines interfacing with the host processor.
This means you can use the known ISP pinout from another phone with the same MediaTek MT6762 processor. A search for "MT6762 ISP Pinout" will yield results for devices like the and Realme C2 , whose pinouts have been documented by the community. You can use these as a reliable starting point for your LG K41S.
Carefully desolder your jumper wires using a desoldering braid to leave the surface pads clean. lg k41s isp pinout new
The most effective path forward is to use a . The LG K41S uses the MediaTek MT6762 (Helio P22) chipset. The eMMC programming interface (the ISP bus) is often common across all devices using the same processor.
This combination (MediaTek CPU + eMMC storage) is crucial because MediaTek devices have specific test point protocols. Unlike Qualcomm devices (which use EDL/9008 mode), MediaTek phones often require shorting specific pins to force the CPU into or Boot ROM (BROM) mode. This is where the "ISP Pinout" comes in. The phone is soldered to a specialized hardware programmer (like Easy JTAG, Medusa Pro, or an MRT dongle) via these ISP points to force a connection.
: These points are typically located on the back of the motherboard, often under a small metal shield near the eMMC and MediaTek CPU. Transmits control commands and responses from the host
Using a multimeter in continuity mode (Beep mode), ground one probe on the battery negative or a USB shield. Tap the other probe across suspect pads. The GND pad will beep. Once you find GND, the adjacent test points are usually the data lines. The CLK is often the easiest to find as it is a longer trace leading towards the CPU.
Under a microscope, tin the ends of your jumper wires. Apply a small amount of flux to the motherboard test points. Keep your jumper wires (under
: Some technicians report that jumpering the CMD resistor can stabilize "auto-disconnect" issues during long read/write operations. ⚠️ Warning A search for "MT6762 ISP Pinout" will yield
⚠️ The old pinout (widely shared on forums like GSM-Forum or Hovatek) fails on Rev 1.1 with “eMMC timeout errors” because the CMD line is now pulled up to 1.8V via a different resistor. The new pinout below corrects this.
For a logical connection to an eMMC programmer, you are looking for three specific signals: